Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 837 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a battery torch (d) a wind-up clock
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
3. 3.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
4. 4.What does the cloud server do? (a) measures the real world (b) stores data online (c) reads values, decides (d) acts on a command
5. 5.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) sensor (d) actuator
6. 6.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a fitness band with app (d) a wind-up clock
7. 7.🌐 In an IoT system, which part carries the data? (a) phone app (b) microcontroller (c) sensor (d) Wi-Fi
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
9. 9.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a Wi-Fi weather station (d) a battery torch
10. 10.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
11. 11.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
12. 12.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi doorbell camera
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a wind-up clock (d) a Wi-Fi doorbell camera
14. 14.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a paper calendar
15. 15.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
17. 17.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a fitness band with app (d) a plain table fan
18. 18.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
19. 19.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) carries the data (d) shows data to you
20. 20.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
21. 21.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
22. 22.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
23. 23.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) measures the real world (d) shows data to you
24. 24.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a fitness band with app (d) a pencil sharpener
26. 26.What does the phone app do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
27. 27.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 130 readings take?
29. 29.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
30. 30.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a battery torch (d) a Wi-Fi weather station
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
33. 33.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a paper calendar (d) an app-controlled bulb
34. 34.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) sensor (c) phone app (d) actuator
35. 35.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) cloud server (d) phone app
37. 37.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
38. 38.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
39. 39.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a paper calendar (d) a pencil sharpener
40. 40.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a fitness band with app

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